
Spoiler maybe..
Well his goal was to become a rich slacker right, but he always help other people (even tho he think he did that for himself) and the beginning of that was the incident when he activate his shield to save himself(everyone) from the magic bomb, I mean from people who explode themself, and he cough up blood, raon crying, everyone worried, and he got famous. He just suffering from all the atention. Anyway he will become even more famous in the future and his slacker life was getting further away (︶︿︶)

Spoiler again
When cale meet the whale king, before that actually. The dragon ask cale if cale maybe gave him a random name, and cale just casually answer
"raon, on and Hong will sad if they heard what you just say" the black dragon just shocked you know and he reply
"Human, what did you just say..." And cale
"Raon Miru, that is your name"
"...."
Raon mean joyful and miru mean dragon.
"I hope that you will be a joyful dragon"
Raon was so happy that he fluttering his wings and wagging his tail. THAT THE CUTEST THING EVER
...And this is how he starts to suffer from success. The Slacker Life dream just drifts further and further away from our poor Young Master Silver Shield. (︶︿︶)